Trap for drain-pipes.



a citizen of the JOHN L. WERRBAGH, OF CHICAGO, ILLINOIS.

TRAP Fort DRAIN-PIPES. y

V Specification of ilietters Patent.

. Patented June 8, 1915.

Application filed March 31, 1913. Serial No. 757,851.

To all whom it may concern Be it known that I, J oHNL. WERRBAOH, United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Traps jfor Drain- Pipes, of which the following is a specification.

My invention relates to improvements in traps for drain pipes, and it has for its salient object to provide means whereby the trap be discharged of its water-seal with theutmost convenience, and the manipulation of the trap to empty it will effect the mechanical sealing of the drain pipe.

Another object of the invention is to provide a construction which'aifords convenient access for freeing the trap of collected sediment or obstructing objects; and it is the general object of the invention to provide a simple and improvedtrap of the character referred to. v

To the above ends, the invention consists in the matters hereinafter described and more particularly pointed out in the appended claims. 7 V

In the accompanying drawlng, Figure 1 is a side elevation of a trap embodying my invention; the parts being shown in'normal position, 2'. 6., with the trap open to receive and permit the passage of waste water; and Fig. 2 is an edge elevation of the device shown in Fig. 1.

Referring to the drawings, 1 designates the inflow pipe or receiving side of the trap,

2 the outflow pipe or discharge side of the trap, 3 the sealing and cleaning chamber, and 4: the siphon pipe which connects the sealing chamber. with the discharge pipe.

valve, designated as a whole 5, is inserted in the inflow pipe, said valve comprising a suitable valve-casing 6 set in as a section of the inflow pipe, and a plug valve 7 extending through the valve-casing and controlling the passage through the latter. The

valve 7 is a tapered, rotary lines at 8, which in the normal position of the valve permits the waste liquid to pass freely, while in the other position of the valve the passage is sealed. To limit and determine the throw of the valve in each of its directions,

10 and 11 formed upon the valve-casing posed a valve,

of the valve provided with a through port, indicated in dotted a stud 9 is mounted on the valve-body, which cooperates with shoulders ninety degrees apart. The stem 1 of the valve-body is provided with" a lever handle 12 whereby the valve may be opened and closed; this handle preferably, and as shown, hanging vertically downward in its normal position. With the lowermost'part of the sealing chamber 23 is connected a by-pass pipe 13, which leadsfrom said chamber downwardly and is attached to. and communicates with a nipple 14 which leads into the outflow pipe 2 of the trap. In the descending part of the by-pass pipe is interdesignated as a whole 15, comprising a casing 16 and a valve-plug 17 these parts being constructed and arranged generally similar'to the valve 5-hereinabove described, except that they are smaller.

Upon the stem of the valve-plug'l'? is fixed an arm 18 whichext'ends laterally in a plane parallel with the plane of movement hand lever 12,and'the end of the arm 18' is connected with said hand lever 12'by a link 19, so that the two valve-plugs are positively connected to move together. 1 The port of the valve 15 is arranged at right angles-to the port of the-valve 5, so that when in normal position the by-pass pipe is sealed. Upon the hand lever 12' being swung (to the left, as shownin'the drawing) into position to shut off the inflow pipe, the by-pass valve is opened andrthe liquid which normally forms the. seal in theisealin'g chamber thus permitted to flow from the discharge side of the trap.

In order to permit ready access to the bottom of the sealing chamber with a prod or wire, the'connection. between the descending and lateral parts of the bypass pipe takes the form of aT-coupling 20,'the-lower arm of which is closed by a removable screw-cap 21. Obviously, when this cap is removed and the valve 15 opened, a prod or wire may be inserted upwardly so as to reach into the sealing chamber forthe purpose of dislodging any obstruction therein.

The operation of the device has been suiiiciently described. The device finds avaluable field of usefulness in those sections of l the plumbing is likely the country where By simply shifting the to freeze in winter.

valve-controlling lever, the trap is instantly discharged and rendered immune to danger by freezing. At the same time, all danger from sewer gas 1S precluded because the very act of opening the drain to empty the trap closes the inflow pipe, and thus precludes the escape of sewer gas.

While I have herein shown and described a practical and preferred embodiment of the invention, yet it is to be understood that the details of construction and arrangement may be modified without departing from the invention.

I claim as my invention:

1. A trap having the usual inflow and discharge passages and interposed liquid sealchamber, in combination with a by-pass connection between the lower part of the liquid seal chamber of the trap and the discharge passage thereof, a valve above the trap controlling the inflow passage, a valve controlling the by-pass connection, and operative connections between said valves whereby they are made to move together, the one opening as the other closes, and vice versa.

2. A trap having the usual inflow and discharge passages and interposed liquid seal chamber, in combination with a by-pass connection between the lower part of the liquid seal chamber of the trap and the discharge passage thereof, a rotary valve above the trap controlling the inflow pipe, a rotary valve controlling said by-pass and having its port arranged at right angles to the port or the first named valve, a handle op eratively connected with one of said valves, and operative connections between said handle and the other valves, whereby both valves are compelled to move together.

3. In a trap for drain-pipes, the combination with the inflow pipe, the outflow pipe, the liquid seal-chamber, and the siphon connection between said chamber and the outfiow pipe, of a rotary valve controlling the lnflow pipe, a by-pass pipe connected with the lower part or" the seal-chamber and leading thence to the outflow pipe, a rotary valve controlling said by-pass pipe, a hand lever connected with one of said valves, an angularly-extending arm connected with the other valve, and a link connecting said hand lever and arm, substantially as de scribed.

4. The combination with a fluid receiving member of an inlet conduit therefor, a valve in said inlet conduit, an outlet conduit, a bypass interposed between said memher and outlet conduit, a valve member in said bypass having its port arranged at right angles to that of the first named valve and operative connections between said valves to move the same in unison, whereby the one valve is opened when the other is closed.

5. A. drain pipe consisting of upper and lower sections and a connecting trap, an angular bypass comprising one member leading downward from the lower part of the trap and closed by a removable cap and a member connecting said first named member with the lower section of the pipe, a rotary valve controlling the upper section of the pipe, a rotary valve controlling the bypass and having its port at right angles to the first named valve, a handle for operating one of said valves, and means connecting said valves to move them in unison.

6. A drain pipe consisting of upper and lower sections and a connecting trap, an angular bypass comprising one member leading downward from the lower part of the trap and closed by a removable cap and a member connecting said first named mem her with the lower section of the pipe, a rotary valve controlling the upper section of the pipe, a rotary valve controlling the bypass and having its port at right angles to the first named valve, a handle for operating one of said valves, means connecting said valves to move them in unison, and means to limit the rotation of the valves to a quarter turn.

JOHN L. WERRBACH.

Witnesses:

ALBERT H. GRAVES, JULIA M. BRISTOL.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of mutants, Washington, D. G. 

